Age related disease study 1 and 2 (AREDS 1 and AREDS 2) and other studies before OCT era were very important in terms of sorting out drusen based on their morphological characteristics on fundus photography or indirect ophthalmoscopy and recognizing the ones that are more prone to progress to advanced stages of ARMD (atrophy or wet form).

Patients with RRD were collected, after complete history and ocular examination including visual acuity, slit lamp examination, pupil examination, intraocular pressure and fundus examination with both direct and indirect ophthalmoscopy.

Virtual reality indirect ophthalmoscopes are available with pre-programmed virtual images of various retinal conditions to train registrars in the technique of indirect ophthalmoscopy, to recognise the pathology and to make retinal sketches.

At each visit routine evaluations, which included Snellen's best corrected visual acuity, intraocular pressure measurement by applanation tonometry, slit-lamp biomicroscopy and indirect ophthalmoscopy, were done.

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